Bosch CR 10, Manual

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2 | General safety instructions
6720830560 (2015/06) CR 10
1 General safety instructions
Installation and commissioning
▶ Observe all country-specific regulations and standards during installation and
operation!
▶ All instructions must be observed. Failure to comply with instructions may result
in material damage and personal injury, including possible loss of life.
▶ Ensure that the user interface is installed and commissioned by an approved
contractor.
▶ Do not install the user interface in wet areas.
▶ Install and commission the heat source and other accessories in accordance with
the relevant instructions.
▶ Never connect the user interface to the 230 V mains.
▶ Before installing the user interface: electrically isolate the heat source and all
other BUS units from the power supply and secure against unintentional
reconnection, making sure that the power supply is completely disconnected.
Damage caused by frost
The system can freeze, if it is not in operation:
▶ Leave the system switched on, if the outside temperature is below 0 °C.
▶ If the user interface is used as a controller, system frost protection is not
possible. System frost protection can only be reliably guaranteed, if weather-
compensated control is used.
▶ Correct any faults immediately.
2 Product Description
Possible applications
• Room temperature-dependent controller for systems with one heating circuit
without mixer
• Zone controller for one heating circuit without mixer but with zone module and
max. 8 heating circuits in systems without a higher-level user interface